From e30092afc1803d753914a7ab9fa88bba818de559 Mon Sep 17 00:00:00 2001
From: Shane Synan <digitalcircuit36939@gmail.com>
Date: Sat, 14 Jan 2017 14:54:53 -0600
Subject: [PATCH] Fix expanding networks in Chat Monitor settings

Update the network expanded/collapsed state when setting a model,
including filtered models.

This fixes the Chat Monitor settings page not updating the expanded
and collapsed networks on first load.  It might be excessive to apply
on every model change; if performance issues arise, it can be moved
to BufferView::setFilteredModel() or elsewhere.

Add comments!

Resolves GH-271.

(cherry picked from commit efee441a243efb88929e1e275d71ee27991bf074)
---
 src/uisupport/bufferview.cpp | 24 ++++++++++++++++++------
 src/uisupport/bufferview.h   | 24 ++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/src/uisupport/bufferview.cpp b/src/uisupport/bufferview.cpp
index 76bb2971..f14cff2c 100644
--- a/src/uisupport/bufferview.cpp
+++ b/src/uisupport/bufferview.cpp
@@ -129,6 +129,11 @@ void BufferView::setModel(QAbstractItemModel *model)
     }
 
     connect(model, SIGNAL(layoutChanged()), this, SLOT(on_layoutChanged()));
+
+    // Make sure collapsation is correct after setting a model
+    // This might not be needed here, only in BufferView::setFilteredModel().  If issues arise, just
+    // move down to setFilteredModel (which calls this function).
+    setExpandedState();
 }
 
 
@@ -329,7 +334,19 @@ void BufferView::on_configChanged()
 {
     Q_ASSERT(model());
 
-    // expand all active networks... collapse inactive ones... unless manually changed
+    // Expand/collapse as needed
+    setExpandedState();
+
+    if (config()) {
+        // update selection to current one
+        Client::bufferModel()->synchronizeView(this);
+    }
+}
+
+
+void BufferView::setExpandedState()
+{
+    // Expand all active networks, collapse inactive ones... unless manually changed
     QModelIndex networkIdx;
     NetworkId networkId;
     for (int row = 0; row < model()->rowCount(); row++) {
@@ -343,11 +360,6 @@ void BufferView::on_configChanged()
 
         setExpandedState(networkIdx);
     }
-
-    if (config()) {
-        // update selection to current one
-        Client::bufferModel()->synchronizeView(this);
-    }
 }
 
 
diff --git a/src/uisupport/bufferview.h b/src/uisupport/bufferview.h
index 3e0384c4..ce8b956a 100644
--- a/src/uisupport/bufferview.h
+++ b/src/uisupport/bufferview.h
@@ -90,7 +90,31 @@ private slots:
     void joinChannel(const QModelIndex &index);
     void toggleHeader(bool checked);
 
+    /**
+     * Expand all active networks and collapse inactive ones unless manually changed
+     *
+     * Applies to all networks.  Shouldn't need called except during initialization.
+     */
+    void setExpandedState();
+
+    /**
+     * Save the current display state of the given network
+     *
+     * Tracks expanded or collapsed and active or inactive.
+     *
+     * @see setExpandedState()
+     * @param[in] networkIdx QModelIndex of the root network to store
+     */
     void storeExpandedState(const QModelIndex &networkIdx);
+
+    /**
+     * Set the display state of the given network according to network status and manual changes
+     *
+     * Expands if active or previously expanded, collapses if inactive or previously collapsed.
+     *
+     * @see storeExpandedState()
+     * @param[in] networkIdx QModelIndex of the root network to update
+     */
     void setExpandedState(const QModelIndex &networkIdx);
 
     void on_configChanged();
-- 
2.20.1